Recording telegraphic receiving instrument



J. A. HULIT.

Jan. 16, 1923.

RECORDING TELEcRAPm-c RECEIVING INSTRUMENT.

FILED DEC. 13, I920.

JWI/GTLL'UT' JOZUZ 64. Had

Patented Jan. 16, 1923.

JOHN A. HULIT, OF CHICAGO, ILLINOIS.

RECORDING TELEGRAPHIC RECEIVING INSTRUMENT.

Application filed December 13, 1920.

To all who m it may concern:

Be it known that 1, JOHN A. Hour. of Chicago. Cook County, Illinois, have invented a certain new and useful Improvement in Recording Telegraphic Receiving Instruments, of which the following is a specification.

This invention relates to recording telegraphic receiving instruments of the class shown and described in a plications No. 156,556 renewed as Serial ho. 468,204,. and patented Dec. 6, 1921, No. 1,399,429, and No. 298,939, and contemplates certain improvements thereon.

Generally stated, the objects of the said improvement are to furnish improved means for adjusting the position of the fountain pen or other marking device, relatively to the arn'ia-ture of the instrument, thereby to ensure accurate marking or recording of the message on the traveling tape; to provide improved means for removably securing the pen or marking device in position on the instrument; to provide an improved construction and arrangement whereby a comparatively large exposed compressible ink bulb is supported in position to be conveniently compressed, if the ink fails to flow, and to supply ink to the pen, and whereby the increased weight of the ink supply will not affect the operation of the instrument or render it any the less sensitive; and to provide certain details and features of construction tending to increase the efficiency and. the desirability of an instrument of this particular character.

To these and other useful ends the invention consists in matters hereinafter set forth and claimed, and shown in the accompanying drawings, in which:

Figure 1 is a front elevation of a recording telegraphic receiving instrument embodying the principles of the invention.

Figure 2 is a vertical section on line 22 in Figure 1.

Figure 3 is a detail view showing a different form of the invention.

Figure 4 is a detail view.

As thus illustrated, the invention comprises a base 1 having an upright socket 2 in which is inserted the lower end of the post 3, the latter being adjustably held in place by a set screw 4 inserted through the side of said socket. A bracket 5 is adjustably secured on said post by means of a set screw 6, and the two electro-magnets 7 are Serial No. 430,107.

suitably supported on said bracket, a block of insulation 8 being secured to the bottom of said bracket and provided with set screws 9 for the circuit connections of said magnets. A post 10 has its lower end mounted on said bracket 5 and is provided with upper and lower arms 11 and 12 on which are carried the set screws .13 and 14, with lock nuts 15 and 16 therefor, so that the distance between the opposing ends of said screws can be changed or varied to suit the requirements, as will hereinafter more fully appear. A horizontally disposed arm 17 has one end portion thereof inserted through the transverse socket or opening 18 formed in the upper end portion of the post 3, and. has its other end provided with a depending or down-turned portion 19 which forms one of the bearings of the rock shaft 20, one end of the latter being supported in a bearing 21 formed in the said post 3, whereby said shaft is free to rock about a horizontally disposed axis. The armature 22 is disposed above the said electro-magnets and is secured to the armature arm 23 which is loosely or rotatively mounted directly on the shaft 20 previously mentioned. It will be seen that this arm 23 also projects a distance in rear of said shaft, as well as a greater distance forward over the magnet. A sleeve 24.: is telescoped over and held on the shaft 20 by set screws 25, and is provided with a rigid short arm 26 at the rear side of said shaft. .An adjustable screw 27, of any suitable character, is inserted through the rear end portion of the arm 23, and is threaded into the end. portion of the arm 26, a coil spring 28 being provided on said screw and thus interposed between the arm 26 of the rear end of the armature arm 23, whereby tightening of said. screw will compress the spring and thereby partially rotate and thus adjust the rock shaft in its bearings; and loosening of said screw will, of course, produce the opposite effect, when this is desired.

The outer end portion of the shaft 20 has a block 29 fixed thereon by a pin 30 inserted transversely through the block and shaft, with the upper end portion of the pin pro- 'ecting a slight distance to form a pivot.

he sheet metal clip for holding the fountain pen 31 comprises a plate 32 provided with an opening 33 to engage said pivot, and having a notch 34 to engage the said screw 35 which is inserted downwardly into said block 29 near the outer end thereof.

With this construction a slight loosening of the screw 35 will permit the plate 32 to be swung upward and backward about the pivot 30, until the notch 34: is disengaged from said screw, thus permitting the pen to be readily removed. Said clip has a curved portion 36 which holds the pen 31 in the desired position thereof. A bulb 37 is supported on the rear end of said fountain pen, to hold the ink, said bulb being of rubber or other compressible material, so that by compression thereof the ink will be forced or fed to the pen or marking device 38 which engages the traveling tape 39, whereby the messages are recorded by the up-and-down movement of the pen on the tape, as the latter travels along during the receiving of the message.

By providing the arm 17 with the depending bearing 19 on itsouter end, so that the bearing hangs down between the armature and the pen or marking device, the armature is conveniently and satisfactorily brought within operative relation to the electro-magnets, and the arm itself over lies the mechanism. and forms a sort of guard therefor. A spring 40 connects the arm 26 with a rotatable element 41 inserted through the post 3, so that by rotation of this element thetension of said spring can be changed or varied to suit the requirements. The forward end of the arm 23, it will be seen, moves up and down between the set screws 18 and 14., so that the up-and-down movement of the armature is limited by the distance between the two screws, but this movement can be changed or regulated by adjustment of said screws. Normally, of course, the spring 40 holds the armature arm 23 up against the lower end of the screw 16, and when the screw 2'!" is rotated the shaft 20 is slightly turned in its bearings to arise or lower the point of the pen.

By loosening the screws 25, the position of the pen 31 can be approximately obtained, by partial rotation of the shaft 20 in its bearings, and the screws can then be tightened to hold the pen in the desired position thereof. Thereafter, if the engagement of the pen 38 with the tape is not accurate or satisfactory, the screw 27 can be rotated to thereby either raise or lower the point of the pen, depending upon whether it presses too hard or too lightly upon the tape, as such adjustment of the screw will obviously rock the shaft 20 in its bearings and thus provide a sort of micrometer adjustment for the penpoint above the tape, thereby to ensure the desired results in receiving and recording the message. The electrical impulses, produced by the sending instrument at some distant point, are received in the coils of the magnet 7, and the armature 22 is vibrated accordingly, and this rocks the shaft 20 and causes the pen to vibrate and to engage and disengage the tape 29 in a manner to reproduce the message on the upper surface of the tape. At any time, by reason of the construction and arrangement shown and described, the bulb 23 can be conveniently grasped and compressed to force the ink down to the penpoint without disturbing the position of the latter. y

In Figure 3 the construction is the same asthat previously described, except that in this case the previously mentioned spring 40 is secured to a pin 42 on the rear end of the armature itself, so that the said spring pulls directly on the armature, thus keeping the armature normally raised, and maintaining the arm 23 normally against the upper stop or set screw 13 previously mentioned.

It will be understood, of course, that ordinarily the ink in the pen feeds naturally, but if the ink stops flowing, as may happen, the operator can then reach over and squeeze the bulb (which exposed to View above the top of the instrument) to start the ink, and if no ink comes the pen can then be filled again,- in the usual manner, by dipping the end of the pen in ink and releasing the bulb and allowing it to draw up the ink. Furthermore, it will be seen that the axis of the shaft 20 is at right angles to the vertical plane in which the pen oper ates or tilts, and is about midway between the bulb 87 and the penpoint 88, so that the increased weight ofthe ink supply (the bulb can be quite large, or any size, if necessary) does not affect the operation of the instrument. T he magnets pull the penpoint down and the ink bulb 37 up, and the spring 40 pulls the pen up, whereby the weight of the ink in the bulb helps said spring to raise the pen from the tape. The ink bulb, which is removable from the pen barrel, is preferably quite near the axis of tilting motion, and the arrangement is such, therefore, that the weight of the ink supply does not rein der the instrument sluggish in its action.

What- I claim as my invention is:

1. in recording telegraphic receiving instrument, the combination of a post, an arm extending laterally from said post, an electromagnet, a rock shaft disposed below said arm and provided with a projecting outer end portion extending beyond the outer end of said arm, a bearing in said post for one end of said rock shaft, a bearing for said shaft on the end of said arm, an armature carried on said shaft below said arm, means to support the magnet in position to operate said armature, and a marking device carried on said outer end portion of said arm.

2. A structure as specified in claim 1, said outer end portion of the shaft havin a block fixed thereon, a thumb screw'in said block,

a plate fastened on said block and provided. with a notch to engage said thumb screw, and means on said plate to hold said mark ing device.

3. A structure as specified in claim 1, said shaft having means including a sleeve immediately below said arm to permit rotary adjustment of said shaft relatively to said armature.

4. A structure as specified in claim 1, said marking device having an ink bulb supported indirectly by said arm in position to be compressed without disturbing the position of said device.

5. In a recording telegraphic receiving instrument, the combination of a rock shaft, an armature loose on said shaft, adjusting means to adjustably connect said armature to said shaft, so that the shaft will be rocked by the armature, and whereby the shaft can be rotatably adjusted while the armatureremains in the normal position thereof, means to hold said armature in said normal position, a magnet to operate said armature, and, a marking device carried on said shaft and thereby subject to regulation by operation of said adjusting means.

6. A structure as specified in claim 5, said adjustable connection comprising a screw, a sleeve adjustable on said shaft, whereby r0- tation of the shaft in the sleeve will permit approximate adjustment of said marking device and adjustment of said screw will cause delicate adjustment thereof.

7 A structure as specified in claim 5, said adjustable connection comprising an arm on said shaft, a screw connecting the armature with the arm so that rotation of the screw rocks the shaft to adjust the marking device, and a coil spring on the screw between the arm and the armature.

8. A structure as specified in claim 5, said means to hold the armature in normal position comprising a spring adapted to yield to the pull of said magnet.

9. In a recording telegraphic receiving instrument, the combination of a marking device having a compressible ink bulb, and means including an electromagnet and its armature for oscillating said device and to support said bulb in position for com ression without disturbing the position 0 the marking device, and whereby said bulb is movable up and down .in said plane.

10. In a recording telegraphic receiving instrument, the combination of a marking device, a rock shaft, a block fixed. on the end portion of the shaft, a thumb screw in said block, a plate pivoted on said. block and formed with a notch to engage said screw, means on said plate to hold said marking device, and means including a magnet and its armature for rocking said shaft.

11. A structure as specified in claim 9, in combination with means whereby the weight of said bulb tends to raise said armature from the magnet.

12. A structure as specified in claim 9, in combination with a traveling tape, and means whereby the weight of said bulb tends to raise the marking device from the tape.

13. A structure as specified in claim 9, in combination with a spring and means whereby said bulb and spring cooperate to raise said armature from the magnet and to raise the marking device.

14. A structure as specified. in claim 9, in combination with means whereby said bulb tends to counter balance the marking device and. armature about a horizontal axis of motion formed by a rock shaft provided for said armature.

15. A structure as specified in claim 9, said bulb being comparatively large and exposed to view above the top of the instrument.

16. The combination of a fountain pen, a movable member, means for connecting said fountain pen and movable member for relative movement about an axis, means including a screw for adjusting said fountain pen about said axis, and means for controlling said movable member to cause said fountain pen to engage and disengage a surface.

17. A structure as specified in claim 10, said screw having a compression coil spring thereon, whereby rotation of the screw in one direction compresses said spring and raises the point of said fountain pen from said surface, and whereb the rotation of said screw in the opposite direction permits said spring to expand and moves the point of the fountain pen toward said surface.

18. A structure as specified in claim'lO, comprising a spring by which the point of the fountain pen is raised from said surface.

Signed.

JOHN A. HULIT. 

